HOUSTON — Bum Phillips, the folksy Texas football icon who coached the Houston Oilers during their Luv Ya Blue heyday and also led the New Orleans Saints, died yesterday. He was 90.

“Bum is gone to Heaven,” son Wade Phillips tweeted last night. “Loved and will be missed by all — great Dad, Coach, and Christian.”

Phillips died at his ranch in Goliad, Texas.

Wade Phillips is the Houston Texans’ defensive coordinator.

Born Oail Andrew Phillips Jr. in 1923 in Orange, Texas, Phillips was a Texas original in his blue jeans, boots and trademark white Stetson — except at the Astrodome or any other dome stadium because he was taught it was disrespectful to wear a hat indoors.

Phillips loved the Oilers, and when coaching the team in the 1970s, he famously said of the Cowboys: “They may be ‘America’s Team,’ but we’re Texas’ team.”

He took over as coach of the Oilers in 1975 and led Houston to two AFC championship games before he was fired in 1980. He was responsible for drafting Heisman Trophy winner Earl Campbell, the player who was largely credited with the success of the franchise.

It was a time marked by a frenzied fan base that filled the Astrodome to root for the Oilers and wave their blue-and-white pompons during games.

Houston lost to Pittsburgh 34-5 in the AFC championship game in Campbell’s rookie year. The Oilers returned to the game the following season, only to lose again to the Steelers 27-13.

The Oilers went 11-5 in 1980 but lost to Oakland in the AFC wild-card round and Phillips was fired.

Fans loved his no-nonsense demeanor and were entertained by his often blunt comments

“Football is a game of failure,” Phillips was quoted as saying. “You fail all the time, but you aren’t a failure until you start blaming someone else.”

He left Texas to coach the Saints in 1981 and didn’t have a winning record in his time there and retired in 1985.

He spent about two decades coaching in high schools and colleges mostly in Texas.